Nonlinear behavior in the thermopower of doped carbon nanotubes due to strong, localized states
Y. M. Choi,Dong Su Lee,Richard Czerw,Po-Wen Chiu,Nicole Grobert,Mauricio Terrones,Marisol Reyes-Reyes,Humberto Terrones,Jean-Christophe Charlier,P. M. Ajayan,S. Roth,David L. Carroll,Y. W. Park +12 more
TLDR
In this article, the temperature dependent thermoelectric power (TEP) of boron- and nitrogen-doped multiwalled carbon nanotube mats has been measured showing that such dopants can be used to modify the majority conduction from p-type to n-type.Abstract:
The temperature dependent thermoelectric power (TEP) of boron- and nitrogen-doped multiwalled carbon nanotube mats has been measured showing that such dopants can be used to modify the majority conduction from p-type to n-type. The TEP of boron-doped nanotubes is positive, indicating hole-like carriers. In contrast, the nitrogen doped material exhibits negative TEP over the same temperature range, suggesting electron-like conduction. Therefore, the TEP distinct nonlinearities are primarily due to the formation of donor and acceptor states in the B- and N-doped materials. The sharply varying density of states used in our model can be directly correlated to the scanning tunneling spectroscopy studies of these materials.read more
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Carbon nanotubes-properties and applications: a review
TL;DR: The carbon nanotube (CNT) represents one of the most unique inventions in the field of nan - otechnology as mentioned in this paper, which makes them useful as fillers in different materials such as polymers, metallic surfaces and ceramics.
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Multilayered carbon nanotube/polymer composite based thermoelectric fabrics.
TL;DR: Since these fabrics have the potential to be cheaper, lighter, and more easily processed than the commonly used thermoelectric bismuth telluride, the overall performance of the fabric shows promise as a realistic alternative in a number of applications such as portable lightweight electronics.
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New direction in nanotube science
Mauricio Terrones,Ado Jorio,Morinobu Endo,Apparao M. Rao,Yoong Ahm Kim,T. Hayashi,Humberto Terrones,Jean-Christophe Charlier,G. Dresselhaus,M. S. Dresselhaus +9 more
TL;DR: In this article, the authors review the latest advances in the production and state-of-the-art characterization of B and N-doped carbon nanotubes and nanofibers and briefly discuss different approaches to producing these novel doped nano-systems.
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Carbon nanotubes: synthesis and properties, electronic devices and other emerging applications
TL;DR: In this article, the latest advances in the synthesis, properties, characterisation and applications of carbon nanotubes and related materials are presented, and the roots of this field and some important historical issues are reviewed.
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The physical and chemical properties of heteronanotubes
TL;DR: Theoretical concepts and experimental achievements ranging from carbon nanotubes with low B or N doping to the new physics behind boron nitride nanotsubes are covered in this paper.
References
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Large-scale synthesis of carbon nanotubes
TL;DR: In this article, the authors used a variant of the standard arc-discharge technique for fullerene synthesis under a helium atmosphere, where a carbonaceous deposit formed on one of the graphite rods, consisting of a macroscopic (diameter of about 5 mm) cylinder.
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Carbon nanotubes as molecular quantum wires
Abstract: Carbon nanotubes are cylindrical molecules with a diameter of as little as 1 nanometer and a length up to many micrometers They consist of only carbon atoms, and can essentially be thought of as a single layer of graphite that has been wrapped into a cylinder, (See figure 1 and the article by Thomas Ebbesen in PHYSICS TODAY, June 1996, page 26)
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BCN nanotubes and boron doping of carbon nanotubes
TL;DR: In this paper, the synthesis of carbon nanotubes and boron doped (1 to 5 at.% B) was achieved by an electric arc-discharge between an anode made of homogeneous BC 4 N and a cathode making of graphite.
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Systematic Conductivity Behavior in Conducting Polymers: Effects of Heterogeneous Disorder
TL;DR: In this paper, the measured conductivities of organic polymers and single-wall carbon nanotube networks are analyzed in terms of a heterogeneous model that gives a good account of the data.
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Efficient route to large arrays of CNx nanofibers by pyrolysis of ferrocene/melamine mixtures
Mauricio Terrones,Humberto Terrones,Humberto Terrones,Nicole Grobert,W.K. Hsu,Yanqiu Zhu,J. P. Hare,Harold W. Kroto,David R. M. Walton,Ph. Kohler-Redlich,Manfred Rühle,J. P. Zhang,Anthony K. Cheetham +12 more
TL;DR: In this article, a high-yield route to two-dimensional arrays (<400×400μm2) of aligned C49Nx (x ⩽ 1) nanofibers (<100 nm o.d.; <60 μm length), by pyrolyzing mixtures of ferrocene and melamine at 950-1050°C under an Ar flow was reported.